Continual venous insufficiency (CVI) happens Whenever your leg veins develop into harmed and may’t function as they should. Usually, valves in your leg veins maintain blood flowing back up to your heart. A pulmonary embolism (PE) is often a blockage in on the list of pulmonary arteries within the lungs, https://www.sgvascularctr.com/what-are-some-common-vein-treatments/